60mm or 80mm scope to 300 yard target shooting?

Which would be the better scope size for spotting .22 and .30 caliber holes in high power shooting out to 300 yards?  I know the larger objective lens will gather more light.   I had a very old Redfield, 20-60X60 which I found difficult to focus clearly.  I recently picked up a Konus 20-60X80 which is some what better, but still lacks ability to focus in clearly.  Maybe it is just my old set of eyes!  I know you basically get what youp ay for and am considering taking the plunge for a Kowa, Lieca or Nikon.  I have never had the opportunity to view these scopes.  Would the smaller 60 or 65 mm be better in this use?  I use the angled scope for better viewing in the prone position.  Would the fluorite or ED lenses offer any better focusing in this use?  Any info from other high power shooters or other "experts" would be appreciated!  Thanks!

If scopes in that class are on the table, you can't buy a better spotting scope than the Kowa Prominar 88... period.  At least at this time. 

Fluorite/ED/HD/APO scopes control chromatic aberration better than scopes without these lens elements.  This provides a slightly cleaner, sharper, higher resolution image, but you pay for it!  The larger objective sizes will provide better light transmission and resolution at higher magnification.

What is your budget? Any of the alpha scopes will work. But a starting point would probably be the bushnell elite 20-60x80 ED. And I would go with the larger objective. That way if it is a more challenging condition you are covered.

RifleDude wrote: If scopes in that class are on the table, you can't buy a better spotting scope than the Kowa Prominar 88... period.  At least at this time.  Fluorite/ED/HD/APO scopes control chromatic aberration better than scopes without these lens elements.  This provides a slightly cleaner, sharper, higher resolution image, but you pay for it!  The larger objective sizes will provide better light transmission and resolution at higher magnification.

Well, it's my opinion that you DO need an 80mm, no matter the quality. 

Well, on good days any of the alphas will be fine.  80+MM is your best bet.  I have used Kowa's, Leica's, and others and all are good.  BUT!!!!, you are going to be lucky to see .22 cal holes at 300 yds.  The mirage usually blurrs the target enough to keep you from seeing holes.  There is no scope in the world that can move mirage out of the way.  I shoot a LOT of Highpower rifle (Dist Rifle, P100, soon to be HM class) and I just call it a lucky day when I see holes in my 300 Rapids with any scope.  Most of the time the only way the holes show themselves is when the person that just replaced the target center really gooped on the glue and the bullet really puckers the shot hole on the target.   As a matter of fact, I only use my scope to check the wind on the mag change, just to make sure it hasn't changed.  Learn to read the wind and you're scores will go up the way you want them to.  Not trying to be a know it all, just trying to help.